ASTM, JIS, GB, DIN, EN Hot-dip galvanizing involves immersing a cleaned and derusted steel pipe into molten zinc at approximately 600°C, resulting in a uniform zinc coating typically exceeding 50 microns in thickness. This process forms a dense zinc-iron alloy layer with exceptional corrosion resistance, making it particularly suitable for humid or saline environments.
In contrast, electro-galvanizing deposits a zinc coating onto the steel pipe surface through electrolytic reaction. While more cost-effective, this method offers slightly inferior corrosion protection compared to hot-dip galvanizing and is primarily used for indoor, dry environments.
Specification
Thickness：1-200mm;or as required
Length:2000-16000mm,or as required
Dimensions：16-1020mm;(1/2inch~40inch)Dimensions
Technique：Hot Rolled Or Cold Rolle
Zinc Coating ：pre galvanized steel pipe: 60-150g/m2
hot dipped galvanized steel pipe:200-460g/m2
Surface treatment：Cold galvanizing,Hot dip galvanized
Certification:CE, ISO, SGS,BV,Mill Certificate
Standard:ASTM,JIS,GB,DIN,EN
